<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <title>Test 0290</title>
</head>
<body>
  <h1>@href becomes subject when @property and @datatype are present</h1>
  <a href="http://example.org/" property="rdf:value" datatype="">value</a>
</body>
</html>